. >> the current president, president obama, was on the show last week. the challenger, mitt romney has not been on the show. we have asked him to be on the show. we have -- any night, any time, short notice, whatever he wants, he can be on the show. he's got 39 days. now, i don't want to persuade anybody unnecessarily, but if he's not here in 39 days, don't vote for him. >> bill: no, not much of a chance that the majority of dave's audience will be supporting romney, but we do feel letterman's pain 'cause we're trying to get the governor on "the factor" as well. finally check five, because of all the interest in the upcoming debate this saturday evening between me and jon stewart, we put together a montage of past encounters. do you, jon stewart, have obama remorse? >> i think people feel a disappointment in that there was a sense that oh, jesus will walk on water and now you're looking like, oh, look that, it's just treading water. >> bill: you said he's let you down a couple of times when he didn't do a far left thing that you wanted. >> how far left a